FB_MBUS_ELV_CMa10_20

VAR_INPUT

usiAddress      : USINT;
stSecAdr        : ST_MBUS_SecAdr;
eBaudrate       : E_MBUS_Baudrate := eMBUS_Baud2400;
bStart          : BOOL;
bSND_NKE        : BOOL := TRUE;
bReadInit       : BOOL := TRUE;
tMinSendTime    : TIME := t#2s;
bDisabled       : BOOL := FALSE;

usiAddress: Primary address of the counter, that shall be readout with this module.

stSecAdr: Secondary address of the counter, that shall be readout with this module.

eBaudrate: 300, 2400, 9600 baud.

bStart: Positive edge on this input, the meter is read out once.

bSND_NKE: TRUE to initialize the meter at each reading, and sets the meter on the first telegram (SND_NKE).

bReadInit: After restarting the PLC, the meter is read out once.

tMinSendTime: Standard t#2s. When this time exceeds, the counter is rereadout. At t#0s the counter is not readout and can be readout with bStart manually.

bDisabled: TRUE = disable the function block.

VAR_OUTPUT

bBusy           : BOOL;
bReady          : BOOL;
bError          : BOOL;
eError          : E_MBUS_ERROR;
dwIdNumber      : DWORD;
byStatus        : BYTE;
byGEN           : BYTE;
byCounter       : BYTE;
usiRecivedAdr   : USINT;
eMedium         : E_MBUS_Medium;
sMan            : STRING(3);
strRelHumi      : ST_MBus_Info;
strRelHumiMin   : ST_MBus_Info;
strRelHumiMax   : ST_MBus_Info;
strTemp         : ST_MBus_Info;
strTempMin      : ST_MBus_Info;
strTempMax      : ST_MBus_Info;
strTempAvg1h    : ST_MBus_Info;
strTempAvg24h   : ST_MBus_Info;

bBusy: The bBusy output is TRUE while the meter is being read.

bReady: The bReady output is TRUE for one cycle, once meter reading is completed.

bError: The bError output becomes TRUE as soon as an error occurs. The error is described via the variable eError.

eError: The eError output issues an error code when an error occurs (see E_MBUS_ERROR).

dwIdNumber: Serial number of the meter (secondary address).

byStatus: Status of the meter. Please refer to device description for meanings.

byGEN: Meter software version.

byCounter: Transmission counter (number of transmitted RSP_UD).

usiRecivedAdr: Received primary address (0-250).

eMedium: Medium (see E_MBUS_Medium).

sMan: Manufacturer code.

strRelHumi: Instantaneous relative humidity (see ST_MBus_Info).

strRelHumiMin: Lowest instantaneous relative humidity since last min/max reset command (see ST_MBus_Info).

strRelHumiMax: Highest instantaneous relative humidity since last min/max reset command (see ST_MBus_Info).

strTemp: Instantaneous temperature (see ST_MBus_Info).

strTempMin: Lowest instantaneous temperature since last min/max reset command (see ST_MBus_Info).

strTempMax: Highest instantaneous temperature since last min/max reset command (see ST_MBus_Info).

strTempAvg1h: 1-hour temperature rolling average (see ST_MBus_Info).

strTempAvg24h: 24-hour temperature rolling average (see ST_MBus_Info).

VAR_IN_OUT

stCom           : ST_MBUS_Communication;

stCom: About this structure, the block FB_MBUSKL6781() is connected to the meter function blocks (see ST_MBUS_Communication).

Requirements